Obviously the article is quoting what Pak PM told Indian and Afghan PM. I hope both PMs from India and Afghanistan had some really harsh words and threats than just being "apprehensive".
As you can see in a recent NY Times article quoting Pakistan diplomat that Bush and others were very angry about ISIs involvement in everything terror in Afghanistan, the doors are shutting fast and most everyone out there now believe what India has been saying for the last 15 years about Pakistan's complete complicity with Terror orgs.
Now if leadership in India can only show a little bit more authority and have ba##s, they should now aggressively pursue it to Pakistan.